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Comparison between 3D FDTD and 2D Full-vectorial FEM calculated power confinement factors, for hmin equal to 0 and 50 nm, respectively.
| hmin | Numerical method | Γc | ΓSi | ΓOx |
|---|---|---|---|---|
| 0 | Full-vectorial 2D FEM | 48.4% | 22.4% | 29.2% |
| 3D FDTD | 47.2% | 27.7% | 25.1% | |
| 50 nm | Full-vectorial 2D FEM | 48.4% | 22.4% | 29.2% |
| 3D FDTD | 47.5% | 27.7% | 24.8% |
